Skateboard training apparatus



FIG. 1 is a front perspective view of a skateboard training apparatus showing the new design;

FIG. 2 is a front view thereof, the back view being the same image thereof;

FIG. 3 is a right side view thereof, the left side view being the same image thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a front perspective view thereof of the design in the context in which it is intended to be used, the dashed lines form no part of the claimed design. 

The ornamental design for a skateboard training apparatus, as shown and described. 